Cisco Systems PA-4T Cables and Pinouts, EIA/TIA-449 Adapter Cable Signals, DTE Cable CAB-449MT=

Cables and Pinouts

Table 1-4	EIA/TIA-449 Adapter Cable Signals
DTE Cable (CAB-449MT=)					DCE Cable (CAB-449C=)
Router End, HD1				Network End,	Router End, HD					Network End,
60-Position Plug				DB-37 Plug	60-Position Plug					DB-37 Receptacle
Signal	Pin		Pin	Signal	Signal	Pin			Pin Signal
Shield ground	46		1	Shield ground	Shield ground	46			1	Shield ground
TxD/RxD+	11	—>	4	SD+	RxD/TxD+	28	<—	4		SD+
TxD/RxD–	12	—>	22	SD–	RxD/TxD–	27		<—	22	SD–
TxC/RxC+	24	<—	5	ST+	TxCE/TxC+	13	—>	5		ST+
TxC/RxC–	23	<—	23	ST–	TxCE/TxC–	14		—>	23	ST–
RxD/TxD+	28	<—	6	RD+	TxD/RxD+	11	—>	6		RD+
RxD/TxD–	27	<—	24	RD–	TxD/RxD–	12		—>	24	RD–
RTS/CTS+	9	—>	7	RS+	CTS/RTS+	1	<—	7		RS+
RTS/CTS–	10	—>	25	RS–	CTS/RTS–	2		<—	25	RS–
RxC/TxCE+	26	<—	8	RT+	TxC/RxC+	24	—>	8		RT+
RxC/TxCE–	25	<—	26	RT–	TxC/RxC–	23		—>	26	RT–
CTS/RTS+	1	<—	9	CS+	RTS/CTS+	9	—>	9		CS+
CTS/RTS–	2	<—	27	CS–	RTS/CTS–	10		—>	27	CS–
LL/DCD	44	—>	10	LL	NIL/LL	29	—>	10		LL
Circuit ground	45		37	SC	Circuit ground	30			37	SC
DSR/DTR+	3	<—	11	ON+	DTR/DSR+	7	—>	11		ON+
DSR/DTR–	4	<—	29	ON–	DTR/DSR–	8		—>	29	ON–
DTR/DSR+	7	—>	12	TR+	DSR/DTR+	3	<—	12		TR+
DTR/DSR–	8	—>	30	TR–	DSR/DTR–	4		<—	30	TR–
DCD/DCD+	5	<—	13	RR+	DCD/DCD+	5	—>	13		RR+
DCD/DCD–	6	<—	31	RR–	DCD/DCD–	6		—>	31	RR–
TxCE/TxC+	13	—>	17	TT+	RxC/TxCE+	26	<—	17		TT+
TxCE/TxC–	14	—>	35	TT–	RxC/TxCE–	25		<—	35	TT–
Circuit ground	15		19	SG	Circuit ground	15			19	SG
Circuit ground	16		20	RC	Circuit ground	16			20	RC
Mode 1	49			Shorting group	Mode 1	49				Shorting group
Ground	48				Ground	48
Ground	51			Shorting group
Mode_DCE	52

1 HD = high density.

1-12PA-4T+ Synchronous Serial Port Adapter Installation and Configuration